What Is a Sole Proprietorship in Turkey?
A sole proprietorship (gerçek kişi işletmesi or şahıs işletmesi) is the simplest business structure in Turkey. It is a business operated directly by an individual under their own name or a trade name, without creating a separate legal entity. The owner and the business are legally the same person — there is no distinction between personal and business assets.
Turkey classifies sole proprietors as either:
- First-class merchants (birinci sınıf tüccar): Businesses exceeding defined turnover or capital thresholds (maintain balance sheet accounting)
- Second-class merchants (ikinci sınıf tüccar): Smaller businesses below the thresholds (maintain simpler ledger-based accounting)
Can Foreigners Establish a Sole Proprietorship?
Yes, foreign nationals can establish a sole proprietorship in Turkey, but additional requirements apply compared to forming a company:
- A valid residence permit (ikamet izni) or a specific permit allowing self-employment is typically required
- A work permit for independent workers (bağımsız çalışma izni) may be necessary depending on your nationality and circumstances
- Some activities are restricted to Turkish nationals
This makes the sole proprietorship less straightforward for foreigners compared to forming an LLC, which has no residency requirement. For most foreign investors, an LLC is the preferred and simpler route. See our LLC formation guide for comparison.
Sole Proprietorship vs. LLC: Key Comparison
| Feature | Sole Proprietorship | LLC |
|---|---|---|
| Legal entity | None (owner = business) | Separate legal entity |
| Owner liability | Unlimited personal liability | Limited to capital contribution |
| Minimum capital | None | 50,000 TRY |
| Formation complexity | Simple | Moderate |
| Tax rate | Personal income tax (progressive) | Corporate tax 25% |
| Accounting | Simplified or balance sheet | Full Turkish accounting |
| Foreign ownership | Requires residency/work permit | No residency required |
| Suitable for | Small, local operations | Most foreign investors |
Tax Treatment of Sole Proprietors
Personal Income Tax
Sole proprietors in Turkey pay personal income tax (gelir vergisi) on business profits. The rate is progressive:
| Annual Net Income (TRY) | Tax Rate |
|---|---|
| Up to 110,000 | 15% |
| 110,001 – 230,000 | 20% |
| 230,001 – 580,000 | 27% |
| 580,001 – 3,000,000 | 35% |
| Over 3,000,000 | 40% |
(Income tax brackets are adjusted annually for inflation — verify current brackets at gib.gov.tr)
Personal income tax rates can be significantly higher than the flat 25% corporate tax rate, especially for profitable businesses. This is one reason many foreign investors prefer the LLC structure.
VAT (KDV)
Sole proprietors are generally required to register for VAT once their turnover exceeds certain thresholds or immediately if engaging in VAT-taxable activities. Standard VAT rate: 20%. Monthly VAT declarations apply.
Advance Tax Payments
Sole proprietors must make quarterly advance tax payments based on their estimated annual income. These are reconciled in the annual income tax return.
Simple Taxpayer Regime
Small-scale sole proprietors may qualify for the simplified taxation regime (basit usul), which involves fixed presumptive income levels for certain trades and exemptions from some obligations. This regime is typically available only to Turkish-resident individuals meeting specific criteria.
Registration Process
Step 1: Obtain a Turkish Tax Identification Number
A Turkish Tax ID (Vergi Kimlik Numarası) is required before registration. Foreign nationals can obtain this at the local tax office or through a Turkish consulate.
Step 2: Register with the Tax Office
Visit the local tax office (vergi dairesi) in the district where the business will operate. Submit:
- Identity document (passport + residence permit for foreigners)
- Proof of business address
- Description of business activity
The tax office issues a tax registration certificate (vergi levhası) and enrolls you for the applicable taxes.
Step 3: Register with the Trade Registry (If Required)
Merchants meeting the first-class threshold must register with the Trade Registry Office (Ticaret Sicil Müdürlüğü). Smaller second-class merchants may register with the Chamber of Tradespeople and Craftsmen (Esnaf ve Sanatkarlar Odası) instead.
Step 4: Social Security Registration
If employing staff, register with SGK as an employer. Even as a sole proprietor with no employees, you may need to register for social security contributions as a self-employed (Bağ-Kur) contributor.
Step 5: Sector Licenses
Many activities require sector-specific licenses, permits, or certifications regardless of business structure. Check requirements for your specific activity with the relevant ministry or regulatory authority.
Accounting and Bookkeeping
Second-class merchants maintain a simpler income-expense ledger (işletme defteri). First-class merchants maintain full balance sheet accounting similar to companies.
All merchants must issue proper invoices (fatura) for their transactions and retain records for the legally required period (typically 5 years in Turkey).
When a Sole Proprietorship Makes Sense
Despite the limitations for foreign investors, a sole proprietorship may be suitable when:
- You are already a Turkish resident with appropriate permits
- The business is small in scale with limited liability risk
- You are operating as an independent professional (consultant, designer, developer)
- Operations are genuinely solo with no employees or partners
For businesses planning growth, hiring employees, or holding assets, the LLC structure is strongly recommended due to liability protection, lower effective tax rates on profits, and easier access to financing.
Transitioning from Sole Proprietorship to LLC
If you start as a sole proprietor and later decide to incorporate, the transition involves:
- Forming a new LLC through standard MERSIS and Trade Registry processes
- Transferring business assets and contracts to the LLC
- Closing the sole proprietorship registration at the tax office
- Updating customer and supplier agreements to reflect the new entity
Professional advice is recommended for the asset transfer and tax implications of the transition.
Frequently Asked Questions
Does a sole proprietor need to register for VAT? If the turnover from taxable activities exceeds VAT registration thresholds, yes. In practice, most active businesses register for VAT from inception. See our VAT Registration guide for details.
Can a foreign national operate as a sole proprietor in Turkey? Yes, but it requires a valid residence permit and potentially an independent work permit. The process is more complex than forming an LLC, which has no residency requirement. Most foreign investors opt for the LLC structure.
What is the difference between a sole proprietor and an LLC shareholder-manager? A sole proprietor and the business are legally the same person — all business debts are personal debts. An LLC shareholder’s liability is limited to their capital contribution. Additionally, the LLC is a separate taxable entity paying corporate income tax, while a sole proprietor pays personal income tax.
Is there a minimum revenue threshold for registering as a sole proprietor? No minimum revenue threshold — any business activity requires tax registration from the first day of operations.